Babatunde Adeyemi barbietunnie

Ansible Variable Precedence

Here is the order of precedence from least to greatest (the last listed variables override all other variables):

command line values (for example, -u my_user, these are not variables)
role defaults (defined in role/defaults/main.yml) ^[1]
inventory file or script group vars ^[2]
inventory group_vars/all ^[3]
playbook group_vars/all ^[3]
inventory group_vars/* ^[3]

How to fix – Nginx not accepting headers with underscore

Although headers with underscore are perfectly valid according to HTTP standards, however NGINX does not support it by default. To enable NGINX to accept headers with underscore, add the following directive within the server block of your NGINX configuration.

underscores_in_headers on;

Validate and reload the configuration after making this change as follows:

How to determine the user and group of a daemon in Ubuntu

The situation occasionally arises when you need to determine the user and group a daemon such as nginx is running as on Ubuntu, you can basically run the following command:

ps aux|grep nginx|grep -v grep

How to dump file contents to console with Ansible

-  name: Display content of resolv.conf
  hosts: localhost
  tasks:
    - name: Display resolv.conf contents
      command: cat resolv.conf chdir=/etc
      register: command_output

How to Use Custom Fonts in TailwindCSS + NextJS

Assuming your have already set up your NextJS + Tailwind project,

1. Select your desired custom Google font

2. Scroll to the bottom and select all the styles you are interested in

Restart Postgres on Cent OS 7

Get the service name

sudo systemctl list-units | grep postgresql

Restart the service

Difference between tilde(~) and caret(^) in package.json

According the NPM and semver docs,

~version - "Approximately equivalent to version", see semver.

It does not increment the minor version

For example,

Managing shell history with `historian`

historian is a command-line utility for managing shell history using an SQLite database.

~/.bash_history is deduped and imported into a database.

Setup

Add to PATH

	import os
	ROOT_DIR = os.path.realpath(os.path.join(os.path.dirname(__file__), '..'))

	from django.core.management.utils import get_random_secret_key

	print(get_random_secret_key())